Ermakov A I

Publications in Math-Net.Ru

1. Best Hausdorff approximations by algebraic polynomials and porosity
   
   Mat. Zametki, 59:5 (1996),  692–702
2. HETEROGENEOUS WAVE-GUIDES BASED ON CDS1-XSEX SEMICONDUCTING LAYERS
   
   Zhurnal Tekhnicheskoi Fiziki, 56:10 (1986),  2034–2036
3. Best Hausdorff approximations by algebraic polynomials and continuity of a function
   
   Mat. Zametki, 28:6 (1980),  843–858